Mystery Masterpiece: The Moonstone, Freeze Tag's latest title, is a mysterious hidden object game based on a novel by Wilkie Collins. The story told in the casual game form gets a new life to play with the player's imagination. The whole story is all about an extremely valuable diamond that is missing. The story goes as follows. Sergeant Cuffis asked by Miss Rachel Verinder to investigate the one who stole the gem soon after it was given to her by a family friend. The night before it was found missing the house was full of guests, which only adds the suspects. The gem was initially found by Miss Rachel Verinder's uncle in India in 1799 and sent to her after his death. You play as this Sergeant Cuffis investigating and questioning the nine suspects that you have. You are to go through four hidden object levels for each of the nine. Among the items you are to find there also are evidence cards and ather tools to help you.